try being smarter at showing distinct contacts, dont check just contact id

app/src/main/kotlin/com/simplemobiletools/contacts/activities/SelectContactActivity.kt

@@ -99,9 +99,7 @@ class SelectContactActivity : SimpleActivity() {
             } as ArrayList<Contact>
 
             val contactSources = config.displayContactSources
-            if (!config.showAllContacts()) {
+            contacts = contacts.filter { contactSources.contains(it.source) } as ArrayList<Contact>
-                contacts = contacts.filter { contactSources.contains(it.source) } as ArrayList<Contact>
-            }
 
             Contact.sorting = config.sorting
             Contact.startWithSurname = config.startNameWithSurname

app/src/main/kotlin/com/simplemobiletools/contacts/adapters/FilterContactSourcesAdapter.kt

@@ -21,7 +21,7 @@ class FilterContactSourcesAdapter(val activity: SimpleActivity, private val cont
 
     init {
         contactSources.forEachIndexed { index, contactSource ->
-            if (activity.config.showAllContacts() || displayContactSources.contains(contactSource.name)) {
+            if (displayContactSources.contains(contactSource.name)) {
                 selectedPositions.add(index)
             }
 

app/src/main/kotlin/com/simplemobiletools/contacts/dialogs/SelectContactsDialog.kt

@@ -19,9 +19,7 @@ class SelectContactsDialog(val activity: SimpleActivity, initialContacts: ArrayL
         var allContacts = initialContacts
         if (selectContacts == null) {
             val contactSources = activity.config.displayContactSources
-            if (!activity.config.showAllContacts()) {
+            allContacts = allContacts.filter { contactSources.contains(it.source) } as ArrayList<Contact>
-                allContacts = allContacts.filter { contactSources.contains(it.source) } as ArrayList<Contact>
-            }
 
             initiallySelectedContacts = allContacts.filter { it.starred == 1 } as ArrayList<Contact>
         } else {

app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt

@@ -99,15 +99,11 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
         contacts.sort()
         allContacts = contacts
 
-        val filtered = if (this is GroupsFragment) {
+        val filtered = when {
-            contacts
+            this is GroupsFragment -> contacts
-        } else if (this is FavoritesFragment) {
+            this is FavoritesFragment -> contacts.filter { it.starred == 1 } as ArrayList<Contact>
-            contacts.filter { it.starred == 1 } as ArrayList<Contact>
+            else -> {
-        } else {
+                val contactSources = config.displayContactSources
-            val contactSources = config.displayContactSources
-            if (config.showAllContacts()) {
-                contacts
-            } else {
                 contacts.filter { contactSources.contains(it.source) } as ArrayList<Contact>
             }
         }

app/src/main/kotlin/com/simplemobiletools/contacts/helpers/Config.kt

@@ -12,8 +12,6 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getStringSet(DISPLAY_CONTACT_SOURCES, hashSetOf("-1"))
         set(displayContactSources) = prefs.edit().remove(DISPLAY_CONTACT_SOURCES).putStringSet(DISPLAY_CONTACT_SOURCES, displayContactSources).apply()
 
-    fun showAllContacts() = displayContactSources.size == 1 && displayContactSources.first() == "-1"
-
     var showContactThumbnails: Boolean
         get() = prefs.getBoolean(SHOW_CONTACT_THUMBNAILS, true)
         set(showContactThumbnails) = prefs.edit().putBoolean(SHOW_CONTACT_THUMBNAILS, showContactThumbnails).apply()

app/src/main/kotlin/com/simplemobiletools/contacts/helpers/ContactsHelper.kt

@@ -35,7 +35,9 @@ class ContactsHelper(val activity: BaseSimpleActivity) {
             val contactsSize = contacts.size()
             var resultContacts = ArrayList<Contact>(contactsSize)
             (0 until contactsSize).mapTo(resultContacts) { contacts.valueAt(it) }
-            resultContacts = resultContacts.distinctBy { it.contactId } as ArrayList<Contact>
+            resultContacts = resultContacts.distinctBy {
+                it.getHashToCompare()
+            } as ArrayList<Contact>
 
             // groups are obtained with contactID, not rawID, so assign them to proper contacts like this
             val groups = getContactGroups(getStoredGroups())
@@ -88,6 +90,7 @@ class ContactsHelper(val activity: BaseSimpleActivity) {
                     val websites = ArrayList<String>()
                     val contact = Contact(id, prefix, firstName, middleName, surname, suffix, photoUri, number, emails, addresses, events,
                             accountName, starred, contactId, thumbnailUri, null, notes, groups, organization, websites)
+
                     contacts.put(id, contact)
                 } while (cursor.moveToNext())
             }
@@ -1214,16 +1217,14 @@ class ContactsHelper(val activity: BaseSimpleActivity) {
             activity.dbHelper.deleteContacts(localContacts)
 
             try {
-                val contactIDs = HashSet<String>()
                 val operations = ArrayList<ContentProviderOperation>()
                 val selection = "${ContactsContract.Data.CONTACT_ID} = ?"
                 contacts.filter { it.source != SMT_PRIVATE }.forEach {
                     ContentProviderOperation.newDelete(ContactsContract.Data.CONTENT_URI).apply {
                         val selectionArgs = arrayOf(it.contactId.toString())
                         withSelection(selection, selectionArgs)
-                        operations.add(this.build())
+                        operations.add(build())
                     }
-                    contactIDs.add(it.id.toString())
                 }
 
                 activity.contentResolver.applyBatch(ContactsContract.AUTHORITY, operations)

app/src/main/kotlin/com/simplemobiletools/contacts/helpers/DBHelper.kt

@@ -119,6 +119,10 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
     fun deleteContact(id: Int) = deleteContacts(arrayOf(id.toString()))
 
     fun deleteContacts(ids: Array<String>) {
+        if (ids.isEmpty()) {
+            return
+        }
+
         val args = TextUtils.join(", ", ids)
         val selection = "$CONTACTS_TABLE_NAME.$COL_ID IN ($args)"
         mDb.delete(CONTACTS_TABLE_NAME, selection, null)

app/src/main/kotlin/com/simplemobiletools/contacts/models/Contact.kt

@@ -12,6 +12,7 @@ data class Contact(val id: Int, var prefix: String, var firstName: String, var m
     companion object {
         var sorting = 0
         var startWithSurname = false
+        val pattern = "\\D+".toRegex()
     }
 
     override fun compareTo(other: Contact): Int {
@@ -81,4 +82,10 @@ data class Contact(val id: Int, var prefix: String, var firstName: String, var m
             fullName
         }
     }
+
+    fun getHashToCompare(): Int {
+        val newPhoneNumbers = ArrayList<PhoneNumber>()
+        phoneNumbers.mapTo(newPhoneNumbers, { PhoneNumber(it.value.replace(pattern, ""), 0) })
+        return copy(id = 0, phoneNumbers = newPhoneNumbers).hashCode()
+    }
 }